Seismic control of single-degree-of-freedom structure using tuned viscous mass damper

Kohju Ikago, Kenji Saito, Norio Inoue

Research output: Contribution to journalArticlepeer-review

223 Citations (Scopus)

Abstract

In this study, we propose a new seismic control device, tuned viscous mass damper (TVMD), for building systems. We give a detailed description of an apparent mass amplifier using a ball-screw mechanism, which is one of the most important components for realizing the new device. We also derive a closed-form solution of an optimum seismic control design for a single-degree-of-freedom structure subjected to harmonic excitation. The performance of the new device is compared with those of the conventional viscous damper and viscous mass damper systems. The vibration control system using the TVMD is shown to be the most effective for linear structural systems with dampers having the same additional damping coefficient. The effectiveness of the TVMD for seismic excitation is verified by analyses and shake table tests with a small-scale TVMD.

Original languageEnglish
Pages (from-to)453-474
Number of pages22
JournalEarthquake Engineering and Structural Dynamics
Volume41
Issue number3
DOIs
Publication statusPublished - 2012 Mar

Keywords

  • Dynamic vibration absorber
  • Fixed-point theory
  • Inertial mass
  • Passive seismic control
  • Tuned viscous mass damper

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)

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